﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        
        protected void Button1_Click(object sender, EventArgs e)
        {
            if (TextBox1 == null)
            {
                Label3.Text = "请输入新闻内容";

            }
            else
            {
                Label3.Text = $"此新闻来自{DropDownList1.SelectedValue}谢谢您提交的新闻";
                
            }

        }
        protected void Button2_Click(object sender, EventArgs e)
        {
            TextBox1.Text = null;
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                Label6.Text = DateTime.Now.ToLongDateString().ToString();
            }
        }
    }
}